Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56 - Chrome - $129.95

Description

The Dirty Bird Enhanced Bolt Carrier Group for .223/5.56 features a unique full-auto carrier design with practical improvements in two key areas:

Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity.
Additional wall thickness in the gas exhaust port area for added strength and rigidity.
The 9310 Bolt is machined to mil-spec dimensions and then the external surfaces including the lugs are CNC ground after the heat treating process to ensure a very precise fit. The bolts themselves feature the same Black Nitride finish as the carrier and are High Pressure (HP) Tested and Magnetic Partical Inspected (MPI) in accordance with Mil-STD-1816 specifications.

Weight 13.2 oz
Dimensions 3.25 × 0.625 × 0.625 in
Bolt Material
9310 Steel

Cartridge Compatibility
.223/5.56 NATO/.300 BLK

Finish
Black Nitride, Chrome, DLC, TiN

Carrier Profile
Enhanced

High Pressure Tested
HP Tested

Magnetic Particle Inspected
Magnetic Partical Inspected

Platform
AR-15

Bolt Finish
Salt Bath Nitride